The prominent British environmentalist and leftist writes in the Guardian:
You will not be surprised to hear that the events in Japan have changed my view of nuclear power. You will be surprised to hear how they have changed it. As a result of the disaster at Fukushima, I am no longer nuclear-neutral. I now support the technology.
A crappy old plant with inadequate safety features was hit by a monster earthquake and a vast tsunami. The electricity supply failed, knocking out the cooling system. The reactors began to explode and melt down. The disaster exposed a familiar legacy of poor design and corner-cutting. Yet, as far as we know, no one has yet received a lethal dose of radiation.
Exactly right. The safety margins are so wide that when an old plant using an obsolete design is hit by as bad a natural disaster as is ever going to happen, nothing really bad happens.
He also cites the XKCD chart.